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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 14-Day Average Streamflow
 
02053800 SOUTH FORK ROANOKE RIVER NEAR SHAWSVILLE, VA
LOCATION.--Latitude 37°08'24", Longitude 80°16'00", North American Datum of 1927,
                    Montgomery County, VA, Hydrologic Unit 03010101
DRAINAGE AREA.--109 square miles.
PERIOD OF RECORD.--October 1960 to current year.
DURATION STATISTIC COMPUTATION PERIOD.--All data through September 2015.
REGULATION.--No known regulation.
GAGE OPERATION.--Virginia Department of Environmental Quality - Water Division.
     Duration Plot with 14-Day Average Streamflow Conditions
Provisional Data Subject to Revision 02053800 plot. SOUTH FORK ROANOKE RIVER NEAR SHAWSVILLE, VA
Provisional Data Subject to Revision

                    

The current 14-day running-average value for 03/22/2017 is 62.86 cubic feet per second.

  explanation   Percentile Description Duration Plot Description 28 Day 14 Day 7 Day Daily
      Duration Table of 14-Day Average Streamflow
            Flow values in cubic feet per second


                02053800     SOUTH FORK ROANOKE RIVER NEAR SHAWSVILLE, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
12.0
26.7
38.5
67.9
99.4
161
219
289
571
 
55
February
11.9
39.4
47.4
73.8
125
189
264
358
643
 
55
March
23.9
52.9
62.9
104
166
238
359
440
817
 
55
April
41.6
56.6
70.5
92.7
140
238
339
465
1,240
 
55
May
40.1
51.1
59.1
83.6
115
174
249
307
937
 
55
June
17.7
32.0
38.5
54.4
79.5
127
199
258
932
 
55
July
11.8
22.8
25.8
35.1
49.0
70.0
118
201
957
 
55
August
9.11
16.1
20.7
30.5
40.9
58.3
97.8
130
276
 
55
September
12.0
17.5
21.4
26.0
35.0
51.7
96.1
192
666
 
55
October
13.6
17.3
21.4
29.9
41.8
64.6
130
217
733
 
54
November
16.4
22.8
26.9
37.0
50.6
93.4
190
255
674
 
55
December
17.6
22.7
29.0
43.4
78.7
138
203
262
503
 
55
 
       

The current 14-day running-average value for 03/22/2017 is 62.86 cubic feet per second.

---- Provisional Data Subject to Revision ----

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